There are two rooms A and B. If 10 candidates are send from A to B the number of the students in each room is same. If 20 candidates are send from B to A the number of the students in A is double the number of the students in B . Find the numbers of the students in each room.
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Hey, here your ans
x - 10 = y + 10
⟹x−y=20−−−−−(1)
& x + 20 = 2(y - 20)
⟹x−2y=−60−−−−−(2)
on solving eq (1) and (2) we get,
x = 100 and y
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